|Publication number||US7460123 B1|
|Application number||US 12/151,351|
|Publication date||Dec 2, 2008|
|Filing date||May 5, 2008|
|Priority date||May 6, 2004|
|Also published as||US7369127|
|Publication number||12151351, 151351, US 7460123 B1, US 7460123B1, US-B1-7460123, US7460123 B1, US7460123B1|
|Original Assignee||The Mathworks, Inc.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (6), Referenced by (9), Classifications (6), Legal Events (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The present application is a continuation of, and claims priority to, U.S. patent application Ser. No. 10/914,819, filed Aug. 9, 2004, which claims priority to a U.S. provisional Patent Application No. 60/569,272, filed May 6, 2004, the contents of which are incorporated herein by reference.
The present invention relates to the display of graphical information. Specifically, a graphical display of one or more series of data may be interactively rescaled to aid in graphical interpretation of the data.
Graphical display of data can aid in interpretation of the data and detection of trends or relationships among series of data. Typically, scaling of the data is necessary in order to properly display data in a graph. When multiple series of data are to be displayed on the same graph, scaling can become more difficult. Improper scaling of the data can hide variations in the data. Also, positioning of the data series can aid in ease of comparison among series of data. The need to fit all the data onto the same graph, while maintaining legibility of the data, can become difficult with many data series.
Data can be obtained from a wide variety of sources. For example, spreadsheets, databases, accounting programs and other computer programs can provide data for graphical display. Also, professionals from diverse areas such as engineering, science, education, and economics build mathematical models of dynamic systems in order to better understand system behavior as it changes with the progression of time.
The field of telemetry often involves multiple series of data. Graphical displays are used to determine qualitative relationships between different signals, each expressed in a series of data. However, these graphical displays can be difficult to read and to create. Typically, these plots cannot be interactively manipulated. A parameter file is used which gives the locations and scales of each signal. This parameter file is often created through many iterations of trial and error. Once created, the same parameter file is often used for similar data, as the effort required to change the parameter file is substantial.
There is a need for control of a graphical display of one or more series of data to provide for ease of viewing of the data and optional comparison among multiple series of data. The present invention is directed toward further solutions to address this need. The present invention may be useful in the design of any type of graphical display of data in which the display involves at least one axis.
In accordance with one aspect of the present invention, in an electronic device or a medium holding electronic device executable steps for a method, the method includes providing a graphical display including a graphical representation of a group of data. A user selection is provided to correspond to an axis to change the graphical representation of the group of data by movement of the user selection relative to the axis.
In another aspect of the invention, a medium holding electronic device executable steps for a method is provided. A graphical display is provided that includes a graphical representation of a group of data. A first scale value is provided that corresponds to a first value proximate to a location of the first scale value on an axis. Editing the first scale value to a second value changes the first value at the same location on the first axis to the second value.
In another aspect of the invention, a medium is provided for holding electronic device executable steps for a method. A graphical display is provided that includes a graphical representation of a group of data. In this embodiment, a lower tick mark and/or an upper tick mark are provided to rescale the graphical representation of the group of data within the graphical display.
In another aspect of the invention, a medium is provided for holding electronic device executable steps for a method. A graphical display is provided that includes a graphical representation of a group of data. In a first variation, an offset bar is provided to move a scale bracket without rescaling the graphical representation of the group of data within the graphical display. In a second variation, a combination bar is provided to move a scale bracket without rescaling the graphical representation of the group of data within the graphical display and without moving the graphical representation of the group of data within the graphical display.
The present invention will become better understood with reference to the following description and accompanying drawings, wherein:
An embodiment of the invention provides a graphical display to let users interactively (i.e. dynamically) rescale the display of data to provide a desired display of the data. The present invention can be particularly useful when simultaneously analyzing multiple series of data to determine trends and/or relationships within or among the series of data.
With reference to
A y-scale area 150 is provided for the y-scale information and controls to be provided. Similarly, an x-scale area 200 may also be provided. With reference to the y-scale area 150, a y-scale bracket 160 is provided for each of the data series having a graphical representation 120 in the data area 140. The data bracket 160 includes a lower tick mark 162 and an upper tick mark 164. An offset bar 166 is positioned between the lower tick mark 162 and the upper tick mark 164. The lower tick mark 162 corresponds to a lower offset from the y-data lower limit 142, illustrated for purposes of illustration only by lower offset arrow 163. The upper tick mark 164 corresponds to an upper offset from the y-data lower limit 142, illustrated for purposes of illustration only by upper offset arrow 165.
A lower scale value 170 is located near the lower tick mark 162. In the present example, the lower scale value 170 is 40. Therefore, the location of the lower tick mark 162 represents the location of the value of 40 on the y-axis for the graphical representation 120 of the data series corresponding to the data bracket 160. Similarly, the upper scale value 174, here a value of 50, denotes that the location of the upper tick mark 164 represents the location of the value of 50 on the y-axis for the graphical representation 120 of the data series corresponding to the data bracket 160. There is no need for the location of the graphical representation 120 to be within the lower and upper tick marks 162, 164. For example, the graphical representation 120, as shown in
A combination bar 180 may also be provided near the y-scale bracket 160. The combination bar is illustrated by way of example as between the lower scale value 170 and upper scale value 174.
Optionally, an additional axis may also be provided with a scale area. In the present example, the x-scale area 200 is illustrated with a x-scale bracket 260, lower and upper tick marks 262, 264 and lower and upper scale values 270, 274. An offset bar 266 and combination bar 280 may also be provided. For purposes of illustration only, the lower offset arrow 263 and upper offset arrow 265 illustrate the offsets from the x-data lower limit 146 of the lower tick mark 262 and upper tick mark 264, respectively.
It is understood that the data area 140 and scale areas 150, 200 are illustrated with borders for discussion purposes only, and the borders may be omitted in the graphical display 100.
In operation of the illustrative embodiments, the graphical representation 120 can be changed by user selection of components of the graphical display 100. For example, by moving either of the upper or lower tick marks 162, 164, 262, 264 along their axis, the scale of the graphical representation 120 corresponding to that axis is changed, as the location of the value on that axis as shown by the lower or upper scale value 170, 174, 270, 274 is changed by movement of the corresponding tick mark, and both the lower and upper scale value remain the same. The scale may even be inverted by moving the upper tick mark 164, 264 below the lower tick mark 162, 262. The scale of the graphical representation 120 relative to other axes remains unchanged.
The implementation of the scaling change resulting from the movement of the tick marks 162, 164, 262 or 264 along the respective axis will now be described herein relative to an implementation in which MATLAB from The MathWorks, Inc. of Natick, Mass. is employed. Nevertheless, those skilled in the art will appreciate that the present invention may be implemented in other environments.
MATLAB directs graphics output to a window that is separate from the command window. This window is referred to as the “figure window.” MATLAB also provides handle graphic objects which are the basic drawing elements used by MATLAB to display data within a figure window. Included amongst these objects are axes objects. Axes objects define a region in a figure window and orient their children within the regions. The children may be of the image, light, line, patch, surface or text object varieties. For purposes of this discussion, the focus will be on the case wherein a line is a child of an axes. MATLAB defines a number of properties for such objects. Included within the properties is a ButtonDownFcn property which identifies a callback routine that executes when a button press occurs.
Each axis has a position property that controls the size and location of an axis within a figure window. A user may define the axis position as any rectangle and place this rectangle at a desired location within a figure. The axis position is defined as a vector [left bottom width height]. Left and bottom define a point in the figure window that locates the lower left corner of the axis rectangle. Width and height specify the respective dimensions of the axis rectangle. Multiple axes may be available per figure window. For each axis in an axes, a user may specify ranges, the location of tick marks along the axis and labels for the tick marks.
For the illustrative example shown in
The user then manipulates the input device to move the cursor (Step 304 in
Those skilled in the art will appreciate that the flow chart in
By moving the offset bar 166, 266 along its corresponding axis, the location of the lower and upper tick marks along that axis can be changed simultaneously. The lower and upper scale values corresponding to the lower and upper tick marks being moved remain the same, meaning the scale of the graphical representation 120 relative to that axis does not change, but the location of the graphical representation 120 within the data area 140 changes along that axis.
A combination bar 180, 280 may be provided for additional control for the graphical representation 120 of the data. By moving the combination bar 180, 280 along its corresponding axis, the location of the lower and upper tick marks along that axis can be changed simultaneously. The lower and upper scale values corresponding to the lower and upper tick marks being moved also change accordingly, meaning the scale of the graphical representation 120 relative to that axis does not change and the location of the graphical representation 120 within the data area 140 remains the same. The combination bar 180, 280 makes arrangement of multiple scale brackets relative to each other easy. The steps performed relative to the graphical representation 120 and the scale bracket are largely the same as described above relative to
Double clicking on the lower or upper scale value 170, 174, 270, 274 provides for editing of that lower or upper scale value. Changing the lower or upper scale value changes the value on the axis of the location of the corresponding lower or upper tick mark 162, 164, 262, 264. This results in changing the location and scale of the graphical representation 120 relative to the axis corresponding to the edited lower or upper scale value. A callback routine is provided that is called when such a double-clicking event occurs. This routine facilitates modification of the labels for the ticks on the scale bracket. It also changes the associated limit(s) for the axis and replots the plot based on the revised limit(s).
Moving the graphical representation 120 along an axis changes the lower and upper scale values 170, 174, 270, 274, corresponding to that axis, but leaves the current location of the tick marks, and vertical lines in place.
According to an embodiment, the invention can provide for coupling of adjustment of user selections, such as tick marks, offset bars scale values and combination bars, among graphical representations. For instance, multiple graphical representations may be adjusted simultaneously along an axis. In one example, an x-axis may be a time axis that is common to all of the graphical representations. By coupling adjustment of user selections among graphical representations, all of the among graphical representations could be adjusted simultaneously relative to the x-axis. Coupling of adjustment of user selections may be done by providing part or all of an additional set of user selections, such as tick marks, offset bars scale values and combination bars and/or by the use of a keyboard entry. For example, by holding down a Shift, Cntrl or Alt key when selecting a user selection, such as tick marks, offset bars scale values and combination bars, the action taken upon that user selection may be used to effect action upon other and/or all of the graphical representations relative to that axis. It is understood that providing for coupling of adjustment of user selections may also be combined with retaining individual user selections for each of the graphical representations.
Those skilled in the art will appreciate that updated scale values and the update of the graphical representation need not occur dynamically but rather may occur at the end of the drag and drop event in alternative embodiments. It is understood that the graphical representation could be moved relative to multiple axes simultaneously.
It is understood that the invention may be implemented in a wide variety of methods. For example movement of various items may be done by, for example, dragging, dragging and dropping and the like. Although “double clicking” is used in describing the illustrative embodiment, implementation of the invention may be done in a variety of ways. Examples of alternatives of movement and/or selection of items include, but are not limited to the use of keyboard entries that enable a user selection to rescale the graphical representation of data and single clicking to select entries. Also, the phrase “along the axis” is meant to represent movement parallel to an axis, or movement having a component that is parallel to an axis.
According to the operation of the illustrative embodiment, the user selection of a control to rescale the graphical representation of data does not require rescaling of the underlying data. Therefore, no loss of precision results from changing the data values and large data sets can be used without need of extensive processing to change all of the data in the data set.
According to an embodiment of the invention, the user can interactively modify the scale of the graphical representation by user selection of one or more of the controls, thereby providing rescaling during and in direct response to dragging of the control.
In some implementations, the data area 140 may be formed of one or more data axes and/or the scale areas 150, 200 may be formed of multiple scale axes. In such an implementation, each of the axes may be considered an object within an object-oriented programming environment. Each graphical representation may also be considered an object.
While the user selections, such as tick marks, offset bars scale values and combination bars are illustrated as to the left and below the data area 140, the invention is not so limited. The user selections may also be provided to the right and above the data area 140 and moveable by the user. Gridlines may be provided to aid in viewing of the graphical representations of the data.
The various user selections may be implemented as callbacks added to each item, such as tick marks, offset bars scale values, combination bars and/or the graphical representations 120 themselves. For example, upon a button down function, a mouse location can be determined. The current location of the mouse relative to an axis can then be determined to determine the desired amount of rescaling and/or repositioning.
Optionally, upon user selection of an item, the item will have a visual affordance to denote its selection. For example, the item may be bolded and/or change color. Also, additional items, such as numeric indications of the data lower limit and data upper limit may be shown upon user selection of an item corresponding to the graphical representation and selected axis. A label for the data group may be provided proximate to the scale bracket, combined bar or offset bar.
Additional features can be provided, such as providing the data corresponding to a point on the graphical representation by hovering over the point. Also, functionality associated with the user selection may be textually indicated by hovering over the user selection. Stacked undo may be provided, enabling recent actions to be undone. Snap to increment may also be provided for rescaling a data set to aid in selecting lower or upper scale values to specific increments during movement of the lower or upper tick marks. Minor tick marks (not shown) may also be included between the lower and upper tick marks.
Also, the groups of data may correspond to abstract variables in a principal component analysis. It is understood that the axes may represent a wide variety of numerical or other values. For example, the invention may be used with linear scaling, logarithmic scaling or bar charts. Bar charts may have only a single axis upon which rescaling would apply. The graphical display of the present invention may also be implemented in a graphical modeling environment.
Upon creation of the graphical display, each axis can be divided such that the scale brackets are sized to be approximately 1/n, where n is the number of groups of data to be displayed. The lower scale values and upper scale values can be selected to provide for each graphical representation to extend virtually from the data lower limit to the data upper limit.
According to an embodiment of the invention, a method 800 is illustrated in
The present invention can be implemented on an electronic device.
It should be noted that the electronic device 700 is merely representative of a structure for implementing the present invention. However, one of ordinary skill in the art will appreciate that the present invention is not limited to implementation on only the described device 700. Other implementations can be utilized, including an implementation based partially or entirely in embedded code, where no user inputs or display devices are necessary. In such an instance, a processor can communicate directly with another processor, or other device.
The present invention has been described by way of example, and modifications and variations of the described embodiments will suggest themselves to skilled artisans in this field without departing from the spirit of the invention. Aspects and characteristics of the above-described embodiments may be used in combination. The described embodiments are merely illustrative and should not be considered restrictive in any way. The scope of the invention is to be measured by the appended claims, rather than the preceding description, and all variations and equivalents that fall within the range of the claims are intended to be embraced therein.
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|U.S. Classification||345/440, 345/672, 345/661|
|May 5, 2008||AS||Assignment|
Owner name: MATHWORKS, INC., THE, MASSACHUSETTS
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HULL, DOUG;REEL/FRAME:020952/0897
Effective date: 20040805
|Feb 17, 2009||CC||Certificate of correction|
|Jun 4, 2012||FPAY||Fee payment|
Year of fee payment: 4
|May 24, 2016||FPAY||Fee payment|
Year of fee payment: 8